Conditions n Specifications



SANITARY & PLUMBING WORKS(SOR:wef:01-11-2017)

GENERAL CONDITIONS

1.If in connection with Sanitary & Plumbing Works etc. any item or items of work relating to  Building works, Road works and Carriage crop up, the contactor shall if so directed, have to execute such items. In respect of such items the Schedule of Rates for Building Works, Road Works and Carriage for the current year including general conditions, general specifications etc. operative in the area will be applicable and the contractual percentage will be applicable in respect of such works as well.

2.The ‘Engineer-in-Charge’ shall mean the Executive Engineer of the Division concerned. The Sub-Divisional Officer concerned is authorized to carry out on behalf of the ‘Engineer-in-Charge’ general supervision, day to day instructions with approval of materials and workmanship. In case of dispute, the decision of the ‘Engineer-in-Charge’ shall be final and binding.

3.If not specifically indicated in the items themselves, the rates appearing in this schedule are inclusive of cost of all supply, carriage, handling, fitting, fixing, toll charges, ferry charges etc. and all other incidental works involved in any floor, at any level including all necessary jointing materials, scaffolding to any height, hire charges of tools and plants, and all helping materials but exclusive of GST.

4.To arrive at complete rate of different items in this Schedule, 1% Sundries, 1% water charges, 5% Overhead and 10% Contractors Profit has been considered besides Material cost, Labour Cost and other cost involved to execute the item. All cutting holes, chases, trenches etc. at any place necessary in connection with works as per items in this schedule and subsequent mending damage as per original specification and as directed are included in the rates and shall not be paid extra unless otherwise expressly specified.

5.The issue of Departmental materials, if any required for the work will be at the rates and under the terms and conditions as stipulated in the General Conditions and General  Specifications embodied in the Schedule of Rates for Building works, Materials and Labour for the current year operative in the area.

(i) Cement: -

Issue Rate and Basic Price of Cement are shown in Table – 1.1 of Annexure – I. All cement related item rates depicted in this Schedule are derived considering the fact that Cement will be supplied by the Department at Issue Rate.

If Cement is supplied by the Contractor, then item rates are to be deduced as per Format – A of Annexure – I.

PPC / PSC Cement is considered for Cement related items.

(ii) Reinforcing Steel:-

Issue rate and Basic Price of Reinforcing Steel is shown in Table – 1.1 of Annexure – I. All item rates related to Reinforcing Steel are derived considering the fact that Reinforcing Steel will be supplied by the Department. If Reinforcing steel is supplied by the Contractor, then item rates are to be deduced as per Format – B of Annexure – I. Cut pieces of Reinforcing Steel materials left surplus on completion of work shall not be taken back if the same be considered as unsuitable for utilization in other works.

6.The contractor shall be responsible for the safe custody and proper maintenance in original condition of all sanitary and plumbing works till all works are completed and formally handed over to the Department.

7.Renewal works include dismantling and taking out old work, mending good damage after renewal and removal of the waste materials. The rate for any item of original nature not provided in this Schedule may be deduced from the rate of similar item of renewal work by multiplying by a factor 100/105 and conversely the rate of any items of renewal nature not provided in this schedule may be deduced from the rate of similar item of original nature by multiplying by a factor 105/100.

8.Where renewals are involved, indigenous materials shall be used without exception even if this means changing the type. In cases of exceptional areas viz. operation theaters, chemical laboratories etc., prior approval of the Engineer-in-Charge for using non-indigenous materials are to be obtained. In such case, due care and scrutiny should be exercised for selection of type before acceptance and payment.

9.Before application of rate, quantities of all items with metric unit must be calculated with correction 2 places of decimal when the rate is up to Rs. 100.00 and 3 places of decimal when the rate is above Rs. 100.00.

10.If not mentioned otherwise in the items themselves, all materials including fitting shall conform to standard laid down by the Bureau of Indian Standards and bear I.S.I. mark where such standardization has been made. All other materials must be of best quality conforming to the standard laid down by the I.S.I. and being approved by the Engineer-in-Charg

11.Unless otherwise specifically mentioned in the items of this Schedule, all G.I. Pipes are to be normally of TATA make, all sanitary wares and faucets should be of Parry ware, Hindware, Neycer, CERA, Jaquar, Marc (1st Quality) or should bear I.S.I. certification marks and in cases where term "approved brand/approved make/approved quality" appears shall invariably mean "ISI marked material approved by Engineer-in-Charge.".

12.For works within the perimeter of Jail where works are permitted within the restricted hours only, extra rate @ 10% in respect of all items of the schedule will be allowed.

13.Extra rates for difficult/ reverine areas in respect of all items of this schedule will be allowed as follows :

(a)In riverine areas connected by the river route and / or ferry crossing under:

(i)15% Extra for Hasnabad, Bhangore P.S.

(ii) 15% Extra for Haroa, Canning, Kultali, Namkhana & Kakdwip P.S.

(iii) 22.5% Extra for Gosaba, Basanti, Minakhan, Sandeskhali & Hingalganj P.S.

(iv) 30% Extra for Pathar Pratima & Sagar P.S.

(b) 10% Extra for all areas under Kakdwip PWD Sub-Division excluding the jurisdiction of Kakdwaip P.S. in reverine areas connected by River Route and or ferry crossing.

(c) i) Rates of items except Section (B)(iv) (Item 1 to 6) and items involving labour only in Section (A) to (C) are to be enhanced by 10% for Darjeeling except  plains of Siliguri Sub Division.

In addition to above extra rate following enhancement will be applicable for all items except items involving labour only:

ii) 20% for works in following places:

(a) Hill area of Garubathan Block (b) Kalimpong Municipal area (c) Dow Hill area of Kurseong Sub Division (d) Miric P.S. (e) Section from Mane Bhanjan to Phalut of Simana Sandakphu Phalut Road (f) Section from Peshoke Khola to Lopchu Tea Garden of S.H.No. 12 (g) Within 10 Km from Mongpu under Takda Block (h) Ghoom Tiger Hill Road (i) Section Pankhabari Bazar to the starting of Kurseong Municipal Road of Garidhura-Kurseong Road (j) Kalimpong Block - I / II and Mongpo & Tagda Block.

iii) 20% for works in following places:

(a) Darjeeling Municipal area

(b) Kurseong Municipal area (excluding Dow Hill area)

(c) Rangit

(d) Health Centers at Singritam, Pokhriabong, Lodhama, Takling, Gitdabling, Samathahar, Samolbong & Stittong.

(d) The rates under sections stated above are to be enhanced by 15% for works in Buxa Hills.

(e) The rates for all types of concrete works, Masonry works (except Dry Rubble Masonry and allied works) and plastering etc. in the Hills of Darjeeling District have been arrived at with cost of Ballast on variety of stone aggregates and sand. If any work is done with local approved stone aggregates/sand the rate of the item will be reduced by 15% such reduction will however, be 5% if Teesta variety materials are used.

(f) The rates for all types of concrete works, Masonry works and sand cement plastering in the District of Uttar Dinajpur and Dakshin Dinajpur have been arrived at with the consideration that Bansloi sand (Murarai variety) shall be used in all such works. If any work is done with local sand with the approved of the Executive Engineer, the rate of the item shall be reduced accordingly on the basis of difference of cost of Bansloi sand and local sand. All cement works in the District of Uttar Dinajpur and Dakshin Dinajpur shall be done with stone chips of Pakur variety when no specific mention is made in the description of item.

(g) For W.C.-I:The Schedule of Rates will be enhanced due to various circumstances is mentioned below:

1. By 10% (Ten) for works done within the Hills region of Ajodhya in the District of Purulia (a region will be treated hills in the altitude is more than 200 Meters from the level of any adjoining area within 10 Km.

(h) For W.C. II:Extra rates will be allowed as follows: Khanakul Block No. I & II) -- 5% extra.

(i) In case of any ambiguity or dispute in any matter arising out of this schedule, Superintending Engineer’s decision will be final.

GENERAL SPECIFICATION

(Including Mode of Measurement)

A. EXECUTION

General -- All works shall be carried out in proper manner. Items of works not covered by the following shall be carried out as per direction of the Engineer-in-Charge and to his satisfaction. Unless otherwise specified in this Section or in the description of item the cost of all stages of works mentioned hereunder shall be deemed to have been included in the rates of items provided in the Schedule.

1.    G.I. Tank:

Before acceptance of any G.I. Tank, proper scrutiny as to the thickness of the sheets should be made. Due check should also be made on each face of the tank by punching holes to be subsequently mended and hermetically sealed by the contractor without any extra charge being paid on this account by Department. Thickness of M.S. Sheet is exclusive of galvanizing.

2. Flushing Cistern:

Flushing Cistern of I.P.W.C. & E.P.W.C. will be 10 litre pull and let low down cistern types as specified. Flush pipes for urinals shall be made of G.I. Pipes of Polythene pipes with fittings or lead pipes as may be directed by the Engineer-in- Charge. Flushing cistern of urinals shall be of approve type. All flush pipes and cisterns shall have to be painted with 2 coats of paint of approved shade and brand over a coat of approved primer. The inlets of sanitary fittings and equipments to be connected with the adjacent distribution line (water supply) with requisite lengths and size of P.V.C. connection pipe is to be provided with necessary unions at both ends within the quoted rates of respective items. Cost of these P.V.C. connection pipe will be paid separately.

3. Fittings for G.I. Pipes:

All G.I. Fittings will be of approved make. For installation of G.I. pipe line all fittings and specials as may be necessary shall have to be fitted and fixed to the line.

4. Joints:

The joints of pipes, fitting & accessories shall be made as specified and unless otherwise specified, no separate payment shall be allowed.

(a) The half of the depth of the annular space between spigot and socket shall be packed with spun yarn and the remaining half to be filled up with molten lead well caulked with  aulking tools.

(b) The half of the depth of the annular space between spigot and socket shall be packed with tarred gasket and the remaining half will be filled up three quarters with void and the top quarter with cement mortar (4:1) and shall be finished beveled at 45o.

(i) Stone Ware Pipes & Fittings : The half of the depth of the annular space between socket and spigot shall be packed with tarred gasket and the remaining half shall be filled up with Cement mortar (3:1) & shall be finished beveled at 45o.

(ii) C.I.. Water mainline: The jointing shall have to be done with Tyton joints as per manufacture’s specifications.

5. Test of pipe lines valves and cocks:

The pipe lines, valves and cocks shall be tested at the contractor’s expenses for which no extra payment shall be allowed. The available water supply sources may however be allowed to be utilized for testing but in absence of any such arrangement the contractor shall have to conduct the following tests.

(i) C.I. Water main pipe line : The pipe shall have to be tested at least for designed working pressure.

(ii) C.I. soil pipe line : Smoke test.

(iii) S.W. Pipe line : All sections between two inspection pits shall have to be  tested separately. The funnel shall be at least 1.3 meter above the soffit of the S.W. pipe at the upper inspection pit.

        Any defect or defects detected during testing shall be rectified at the contractor’s expenses.

6. Septic Tank:

Construction of septic tank shall be done as per approved design. After completion of the tank, the tank shall have to be filled up with clear water after removing any foreign materials from the inside of the tank, if any. No separate payment shall be allowed on this account.

7. Painting:

All pipes (G.I., C.I. water main and soil) and fittings shall have to be painted outside with two coats of paint of approved brand and shade

 (i) G.I. Pipes fitting, valves and cocks with jute and white lead paint.

 (ii) C.I. Soil pipes & fittings: The jointing shall have to be done by either of the two methods as specified :

B. MODE OF MEASUREMENT

1. G.I., C.I. Water main & Soil, S.W. Pipe line:

All the pipe lines shall be measured in fitted condition along the central line of the exposed surface.

2. Strainer:

The strainer as used in the Tube-Well shall be measured in fitted condition along the central line of the exposed surface.

3. Boring of Tube-Well:

Boring for tube-wells always shall have to be done by the contractor’s pipe. In no case Departmental pipes or the pipes which will be actually lowered shall be used for the purpose of boring. Labour rate of boring is inclusive of hire charge of boring pipes.

Generally measurement of the boring will be taken on the basis of the finished length of the tube well from the ground line. If for some special reasons, boring depth is required to be more than the finished length of the tube-well, previous permission of Engineer-in-Charge is to be taken to get the payment of extra boring in excess of the finished length.

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